【MATERIAL】: The densest sponge: dense material, can completely block the entry of tiny organisms, moderate hardness, easy to operate, autoclavable, not easy to deform and damage, can be reused
【DESIGN】: Causes minimal shedding and reduces evaporation
【FEATURE】: Maintains tight fit after repeated use and removal
【COMPATIBLE】: 28*30 mm, fit for Biologix Wide Vials.
【NOTE!!!】Due to shipping effects and different materials, the size of the plug will be inaccurate, thanks for your understanding.